Tongs



May s, 1923 1,454,319

A. M. HAMER TONGS Original Filed June 20. 1921 #www A T TOR NE YS CilPatented May 8, 1923.

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TONS-S.

Application led June 20, 3921, Serial No. 1-78,843. Renewed Merch 3T.,1923.

Re it known that I, AUGUSTUS M. Harten, itizen ot' the Unitedv States,residing at `V`:oose Creekj in the county of Harris and "tate oit Texas,have invented certain neu7 .amd useful Improvement in Tongs, of whichthe following is a speeioation.

This inventionrelates to new and useful improvements in a tong.

@ne object of the invention is to provide a tong which is speciallyadapted for use in handling pipe, rods and the like and is particularlyuseiul in screwing` together and unscrerving joints of pipe.

Another object is to provide a tong` which may he readily adjusted topipes and reds et different sizes. Viith theA above and other objects inView the invention has particular relation to certain novel features oi'construction7 operation and arrangement of parts7 an example ot' whichis given in this specification and illustrated in the accomi panyingdrawings, Wherein:-

Figure l shows a plan View oi a rotary, showing the tong applied to adrill stern7 and Working in cri-operation with a backup post. for thepurpose of screwing together and unscreuing the joints ot a drill stem.

Fig'. 2 shows a side View thereof. vlw'. 3 an edge View et' the tong.

Y el. is a side vien' thereof, partially in section, and

Fig. 5 is a cross sectional'vicw taken on the line ot' Fig'. il. In thedrawings the nunieral l designates the rotary` tahle7 which is mountedon the hase 2 rhe numeral 3 designates the drill stein which is drivenhy the rotary. The numeral. 4 des ignates a stationaijY tong which isheld in lined position by a post 5 which upstands from the hase 2. Thistong 1l is applied to joint ot the drill stem to hold it againstturning. Upstanding from the table l is a post 6 which rotates the tong7. This tong secured to the joint ofthe stein to he l in screwing;together or unserewing i 'nts ol? the stern.Y The tons.;` 7 is ofspecial construction which now he deserihed. rhis tong); includes shandle 8 which has a. square hearing in whiih the shank 9 of theslidahle jaw l0 slides. This is arcuate and toothed. The inner end ofthe shank 9 has a swivel-v ling; connection With the actuating rod llwhich is threaded through said handle. The outer end of the rod .ll hasan eye l2 provided to receive a handle hy means of Which the rod maj,rhe turned to adjust the jaw l0. Piroted t0 the handle 8 there is a hooki3 havinpT the removable, arcuate, toothed opposing` the slidahle aw l0.l

The tong is .applied t0 the pipe as shown in l1 igures l and 2 and therod turned to clamp the awe on` opposite sides of the pipe and bymanipulating the tong;` the joint oi pipe to which it applied may heturned.

l'lvlhat l claim is fr tong including a handle formed with a squaresocket in one end, a jaw having a square shanlr which has a slidinghearingr in said socket, a rod threaded through the other end ot' saidhandle and having a swivelins connection With said shankv in said socketto adjus sainelengthwise;I a hook pivote/o to the handle. in eppositionto said jam' and a detachable toothed arcuate jaw` seid hook andopposing` the slidahle and means ttor securing said attachment jaw inposition in said hook.

ln testiino if whereof l have signed my naine to this speeiliization Vinthe presence oi' tuo suhserihing Witnesses.

l'l(illSrl`l. 53 M. lli/il 1ER. llVitnesses: Y

R. U. PACE,y J. H. JONES.

and adapted to Work attachment carried bv

